Benzylamine-assisted noncovalent exfoliation of graphite-protecting Pt nanoparticles applied as catalyst for methanol oxidation

Chun Han Hsu, Hsin Yi Liao, Yi Fang Wu, Ping Lin Kuo

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A novel method has been developed to physically exfoliate graphite and uniformly disperse Pt nanoparticles on graphite nanoplates without damaging the graphene structures. A stable aqueous suspension of graphite nanoplates was achieved by benzylamine-assisted noncovalent fuctionalization to graphite and characterized by transmission electron microscopy, X-ray diffraction and Raman spectroscopy. A uniform dispersion of Pt nanoparticles was then prepared on the graphite nanoplates, where the benzylamine acts as a stabilizer. These Pt loaded graphite nanoplates were then prepared as an electrode, which significantly increased catalytic activity toward the methanol oxidation reaction, resulting in a 60% increment in mass activity compared to that of E-TEK.

Original languageEnglish
Pages (from-to)2169-2172
Number of pages4
JournalACS Applied Materials and Interfaces
Volume3
Issue number7
DOIs
Publication statusPublished - 2011 Jul 27

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Methanol
Nanoparticles
Oxidation
Catalysts
Graphene
Raman spectroscopy
benzylamine
Catalyst activity
Suspensions
Transmission electron microscopy
X ray diffraction
Electrodes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

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title = "Benzylamine-assisted noncovalent exfoliation of graphite-protecting Pt nanoparticles applied as catalyst for methanol oxidation",
abstract = "A novel method has been developed to physically exfoliate graphite and uniformly disperse Pt nanoparticles on graphite nanoplates without damaging the graphene structures. A stable aqueous suspension of graphite nanoplates was achieved by benzylamine-assisted noncovalent fuctionalization to graphite and characterized by transmission electron microscopy, X-ray diffraction and Raman spectroscopy. A uniform dispersion of Pt nanoparticles was then prepared on the graphite nanoplates, where the benzylamine acts as a stabilizer. These Pt loaded graphite nanoplates were then prepared as an electrode, which significantly increased catalytic activity toward the methanol oxidation reaction, resulting in a 60{\%} increment in mass activity compared to that of E-TEK.",
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Benzylamine-assisted noncovalent exfoliation of graphite-protecting Pt nanoparticles applied as catalyst for methanol oxidation. / Hsu, Chun Han; Liao, Hsin Yi; Wu, Yi Fang; Kuo, Ping Lin.

In: ACS Applied Materials and Interfaces, Vol. 3, No. 7, 27.07.2011, p. 2169-2172.

Research output: Contribution to journalArticle

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